Imprint of f(R) gravity in the cosmic magnification
arXiv:2210.09303 · doi:10.1093/mnras/stac3538
Abstract
f(R) gravity is one of the simplest viable modifications to General Relativity: it passes local astrophysical tests, predicts both the early-time cosmic inflation and the late-time cosmic acceleration, and also describes dark matter. In this paper, we probe cosmic magnification on large scales in f(R) gravity, using the well-known Hu-Sawicki model as an example. Our results indicate that at redshifts z < 3, values of the model exponent n > 1 lead to inconsistent behaviour in the evolution of scalar perturbations. Moreover, when relativistic effects are taken into account in the large scale analysis, our results show that as z increases, large-scale changes in the cosmic magnification angular power spectrum owing to integral values of n tend to share a similar pattern, while those of decimal values tend to share another. This feature could be searched for in the experimental data, as a potential "smoking gun" for the given class of gravity models. Furthermore, we found that at z = 1 and lower, relativistic effects lead to a suppression of the cosmic magnification on large scales in f(R) gravity, relative to the concordance model; whereas, at z > 1, relativistic effects lead to a relative boost of the cosmic magnification. In general, relativistic effects enhance the potential of the cosmic magnification as a cosmological probe.
arXiv comment13 pages, 4 figures. Version accepted by MNRAS (typos corrected; revised citations/references; results and conclusion unchanged)
References in corpus (47)
- Modified Gravity and Cosmology
- SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems
- The Baryon Oscillation Spectroscopic Survey of SDSS-III
- Models of f(R) Cosmic Acceleration that Evade Solar-System Tests
- Disappearing cosmological constant in f(R) gravity
- Black holes, gravitational waves and fundamental physics: a roadmap
- What galaxy surveys really measure
- Testing General Relativity in Cosmology
- Observational signatures of f(R) dark energy models that satisfy cosmological and local gravity constraints
- Large-scale clustering of galaxies in general relativity
- A Singularity Problem with f(R) Dark Energy
- Dark Matter from R^2-gravity
- Measuring the lensing potential with tomographic galaxy number counts
- Cosmology with the Square Kilometre Array
- Effect of Peculiar Motion in Weak Lensing
- Cosmology with Doppler Lensing
- Modified Gravity Explains Dark Matter?
- Cosmological Measurements with Forthcoming Radio Continuum Surveys
- Probing the imprint of interacting dark energy on very large scales
- Size Bias in Galaxy Surveys
- Magnification-Temperature Correlation: the Dark Side of ISW Measurements
- The Impact of Magnification and Size Bias on Weak Lensing Power Spectrum and Peak Statistics
- Cosmic History of Chameleonic Dark Matter in Gravity
- Dipolar modulation in the size of galaxies: The effect of Doppler magnification
- Magnification Bias Corrections to Galaxy-Lensing Cross-Correlations
- Observational biases in flux magnification measurements
- Lensing and time-delay contributions to galaxy correlations
- Clustering of quintessence on horizon scales and its imprint on HI intensity mapping
- Measuring accretion disk sizes of lensed quasars with microlensing time delay in multi-band light curves
- The effects of plasma on the magnification and time delay of strongly lensed fast radio bursts
- Weak Lensing Peak Finding: Estimators, Filters, and Biases
- HOLISMOKES -- V. Microlensing of type II supernovae and time-delay inference through spectroscopic phase retrieval
- Measuring ISW with next-generation radio surveys
- On the Emergence of Accelerating Cosmic Expansion in f(R) Theories of Gravity
- Magnification bias as a novel probe for primordial magnetic fields
- Observing relativistic features in large-scale structure surveys -- II: Doppler magnification in an ensemble of relativistic simulations
- Strongly lensed SN Refsdal: refining time delays based on the supernova explosion models
- Testing General Relativity with the Doppler magnification effect
- Dark energy homogeneity in general relativity: Are we applying it correctly?
- Big Bang Nucleosynthesis Hunts Chameleon Dark Matter
- Exploiting magnification bias in ultradeep submillimetre-wave surveys using ALMA
- Large-scale imprint of relativistic effects in the cosmic magnification
- Impact of Microlensing on Observational Strategies for Gravitational Time Delay Measurements
- Which is a better cosmological probe: Number counts or cosmic magnification?
- Understanding the relativistic overdensity of galaxy surveys
- A Malmquist-like bias in the inferred areas of diamond caustics and consequences for inferred time delays of gravitationally lensed quasars
- Doppler magnification in flux-limited galaxy number counts with finite redshift bin width